Black Hills : ESG reports 2023 2023 EEI ESG Disclosure 2023 AGA ESG Disclosure 2023 NGSI Disclosure 2023 SASB Disclosure 2023 TCFD Index 2022 2022 EEI ESG Disclosure 2022 AGA ESG Disclosure 2022 NGSI Disclosure 2022 SASB Disclosure 2022 TCFD Index 2021 2021 EEI ESG Disclosure 2021 AGA ESG Disclosure 2021 NGSI Disclosure 2021 SASB Disclosure 2021 TCFD Disclosure 2020 2020 EEI ESG Disclosure 2020 AGA ESG Disclosure 2020 NGSI Disclosure 2020 SASB Disclosure 2019 2019 EEI and AGA ESG Qualitative Report 2019 EEI

		Electric Company ESG/Sustainability Quantitative Information
	Parent Company:	Black Hills Corporation
	Operating Company(s):	Black Hills Colorado Electric, LLC (d/b/a Black Hills Energy),
		Black Hills Power, Inc. (d/b/a Black Hills Energy),
		Cheyenne Light, Fuel and Power Company (d/b/a Black Hills
		Energy),
		Black Hills Colorado IPP, LLC,
		Black Hills Colorado Wind, LLC,
		Black Hills Electric Generation, LLC,
	Business Type(s):	Black Hills Wyoming, LLC
	Vertically Integrated
	State(s) of Operation:	Colorado, South Dakota, Wyoming
	State(s) with RPS Programs:	Colorado
	Regulatory Environment:	Regulated and Non-Regulated
	Report Date:	24-Jun-2024
						Baseline				Last Year				Current Year
Ref. No.	Refer to the 'EEI Definitions' tab for more information on each metric				2005				2022				2023			Comments, Links, Additional Information, and Notes
	Portfolio
1	Owned Nameplate Generation Capacity at end of year (MW)														Through the implementation of a emission inventory software and subsequent data improvements, the following updates were made to
1.1	Coal					363				395				395
1.2	Natural Gas					121				660				660			generation and greenhouse gas emissions from the 2022 disclosure: addition of the Ontario Cogeneration gas facility in 2005, utilizing historic
	Natural Gas / Oil					100				100				100			EIA-923 monthly heat input and generation data rather than annual averages, modified accounting on negative generation and purchased
													power, and the addition of the City of Spearfish hydro PPA, and categorizing fuel specific power purchase agreements under Section 2.
1.3	Nuclear					0				0				0
1.4	Petroleum					40				38				38
1.5	Total Renewable Energy Resources					0				289				202
1.5.1	Biomass/Biogas					0				0				0
1.5.2	Geothermal					0				0				0
1.5.3	Hydroelectric					0				0				0
1.5.4	Solar					0				0				0
1.5.5	Wind					0				289				202
1.6	Other					0				0				0
Use the data organizer on the left (i.e., the plus/minus symbol) to open/close the alternative generation reporting options
2	Net Generation for the data year (MWh)
2.1	Coal					2,563,767				2,827,578				2,699,155
2.2	Natural Gas					83,649				1,452,289				2,018,974			Net generation and emissions adjusted by % equity of jointly owned sources. Includes 49.9% third party ownership of Black Hills Colorado IPP
2.3	Nuclear					0				0				0			reported as noncontrolling interest.
2.4	Petroleum					4,731				-335				-1,208
2.5	Total Renewable Energy Resources					0				1,323,746				1,080,709
2.5.1	Biomass/Biogas					0				0				0
2.5.2	Geothermal					0				0				0
2.5.3	Hydroelectric					17,205				20,067				21,448
2.5.4	Solar					0				0				86,284
2.5.5	Wind					0				1,303,679				972,977			"Other" includes market purchased power and non fuel specific power purchase agreements. Purchased power data excludes intercompany
2.6	Other					3,810,002				1,765,702				1,507,517
																	purchases between Black Hills Corporation's regulated and nonregulated operating companies, to avoid double counting MWh and emissions.
Use the data organizer on the left (i.e., the plus/minus symbol) to open/close the alternative generation reporting options
3	Capital Expenditures and Energy Efficiency (EE)
3.1	Total Annual Capital Expenditures (nominal dollars)			Not available				$ 598M				$ 590M
3.2	Incremental Annual Electricity Savings from EE Measures (MWh)			Not available				16,776				19,841
3.3	Incremental Annual Investment in Electric EE Programs (nominal dollars)			Not available		$	6,699,744		$	7,569,557
4	Retail Electric Customer Count (at end of year)
4.1	Commercial					25,745				31,428				31,480
4.2	Industrial					142				82				84
4.3	Residential					165,483				188,921				190,776
	Emissions
5	GHG Emissions: Carbon Dioxide (CO2) and Carbon Dioxide Equivalent (CO2e)
	Note: The alternatives available below are intended to provide flexibility in reporting
	GHG emissions, and should be used to the extent appropriate for each company.
5.1	Owned Generation (1) (2) (3)
5.1.1	Carbon Dioxide (CO2)
5.1.1.1	Total Owned Generation CO2 Emissions (MT)		3,264,707				3,876,841				4,071,461
5.1.1.2	Total Owned Generation CO2 Emissions Intensity (MT/Net MWh)		1.23				0.78				0.78
5.1.2	Carbon Dioxide Equivalent (CO2e)
5.1.2.1	Total Owned Generation CO2e Emissions (MT)		3,290,634				3,902,562				4,096,890
5.1.2.2	Total Owned Generation CO2e Emissions Intensity (MT/Net MWh)		1.24				0.79				0.78
5.2	Purchased Power (4)
5.2.1	Carbon Dioxide (CO2)
5.2.1.1	Total Purchased Generation CO2 Emissions (MT)		3,137,519				1,073,115				903,728
5.2.1.2	Total Purchased Generation CO2 Emissions Intensity (MT/Net MWh)		0.82				0.45				0.44
5.2.2	Carbon Dioxide Equivalent (CO2e)
5.2.2.1	Total Purchased Generation CO2e Emissions (MT)		3,153,475				1,080,457				909,809
5.2.2.2	Total Purchased Generation CO2e Emissions Intensity (MT/Net MWh)		0.82				0.45				0.44
5.3	Owned Generation + Purchased Power
5.3.1	Carbon Dioxide (CO2)
5.3.1.1	Total Owned + Purchased Generation CO2 Emissions (MT)		6,402,226				4,949,956				4,975,189
5.3.1.2	Total Owned + Purchased Generation CO2 Emissions Intensity (MT/Net MWh)		0.99				0.67				0.68
5.3.2	Carbon Dioxide Equivalent (CO2e)
5.3.2.1	Total Owned + Purchased Generation CO2e Emissions (MT)		6,444,110				4,983,020				5,006,699			Customers calculating Scope 2 emissions should use the residual intensity published in EEI's "Electric Company Carbon Emissions and
5.3.2.2	Total Owned + Purchased Generation CO2e Emissions Intensity (MT/Net MWh)		0.99				0.68				0.69			Electricity Mix Reporting Database".
5.4	Non-Generation CO2e Emissions of Sulfur Hexafluoride (SF6) (5)
5.4.1	Total CO2e emissions of SF6 (MT)		Not applicable				3,541				3,398
5.4.2	Leak rate of CO2e emissions of SF6 (MT/Net MWh)		Not applicable				0.000714				0.000649			SF6 emissions estimated for operating companies that do not trip the EPA reporting threshold.
6	Nitrogen Oxide (NOx), Sulfur Dioxide (SO2), Mercury (Hg)
6.1	Generation basis for calculation (6)									Total
6.2	Nitrogen Oxide (NOx)
6.2.1	Total NOx Emissions (MT)					5,045				1,869				1,880
6.2.2	Total NOx Emissions Intensity (MT/Net MWh)		0.001902				0.000377				0.000359
6.3	Sulfur Dioxide (SO2)
6.3.1	Total SO2 Emissions (MT)					8,017				1,253				1,147
6.3.2	Total SO2 Emissions Intensity (MT/Net MWh)		0.003022				0.000253				0.000219
6.4	Mercury (Hg)																Current (2022 and 2023) Hg emissions include only units that use performance-based measurement and are applicable to the EPA Mercury and
6.4.1	Total Hg Emissions (kg)					90.44				17.0				8.1
6.4.2	Total Hg Emissions Intensity (kg/Net MWh)		0.000034				0.000003				0.000002			Air Toxics Standard (MATS).
Use the data organizer on the left (i.e., the plus/minus symbol) to open/close the Emissions section notes
	Resources
7	Human Resources
7.1	Total Number of Employees					843				2,982				2,874
7.2	Percentage of Women in Total Workforce		27%				25%				24%
7.3	Percentage of Minorities in Total Workforce		9%				14%				15%
7.4	Total Number on Board of Directors/Trustees		10				10				10
7.5	Percentage of Women on Board of Directors/Trustees		10%				30%				30%
7.6	Percentage of Minorities on Board of Directors/Trustees		10%				10%				10%
7.7	Employee Safety Metrics
7.7.1	Recordable Incident Rate					3.99				1.39				1.51
7.7.2	Lost-time Case Rate					0.39				0.46				0.38
7.7.3	Days Away, Restricted, and Transfer (DART) Rate		1.93				0.82				0.65
7.7.4	Work-related Fatalities					-				0				0
8	Fresh Water Resources used in Thermal Power Generation Activities													Water withdrawal based on facilities we operate.
8.1	Water Withdrawals - Consumptive (Millions of Gallons)		Not available				664.45				758.92
8.2	Water Withdrawals - Non-Consumptive (Millions of Gallons)		Not available				0.00				0.00
8.3	Water Withdrawals - Consumptive Rate (Millions of Gallons/Net MWh)		Not available				1.28E-04				1.40E-04			Intensity based on generation from fossil fuel and renewable facilities we operate.
8.4	Water Withdrawals - Non-Consumptive Rate (Millions of Gallons/Net MWh)		Not available				0.00				0.00
9	Waste Products																All Facilities are classified by the EPA as Very Small Quantity Generators (VSQGs) - due to low quantities of HW generation, however this value
9.1	Amount of Hazardous Waste Manifested for Disposal			Not available				12.5				58.2
									has been quantified and reported. This total does not include universal waste, please see our Sustainability Report for complete waste listing.
9.2	Percent of Coal Combustion Products Beneficially Used			Not available				0%				0%
	Additional Metrics (Optional)
	voluntary basis and could be subject to change. These reports contain forward-looking information as defined
	by the Securities and Exchange Commission. Whether actual results and developments will conform to our
	expectations and predictions is subject to a number of risks and uncertainties that, among other things, could
	cause actual results to differ materially from those contained in the forward-looking statements, including
	without limitation, the risk factors described in our 2021 Annual Report on Form 10-K. We assume no
	obligation to update publicly any such forward-looking statements, whether as a result of new information,
	future events or otherwise.

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